The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 1995
Filed:
Jan. 27, 1994
Applicant:
Inventors:
James O Stoffer, Rolla, MO (US);
Oliver C Sitton, Rolla, MO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
522 51 ; 522 54 ; 522 59 ; 522 61 ; 522 62 ; 522 84 ; 522168 ; 522175 ; 522177 ; 522182 ; 522184 ; 522185 ; 522187 ; 522188 ;
Abstract
Polymerization of ethylenically unsaturated monomers such as methyl methacrylate can be initiated in solutions containing monomer and a special non-polymeric initiator with intense ultrasound. The number average molecular weight of the poly(methyl methacrylate) that forms is about 300,000 gmol.sup.-1 as compared with polystyrene standards. The conversion of the polymerization is about 50% for poly(methyl methacrylate). Variations of the polymerization rate with time and the amount of the initiator are explained by a simple reaction mechanism.